4448391 has 4 divisors (see below), whose sum is σ = 5931192. Its totient is φ = 2965592.

The previous prime is 4448383. The next prime is 4448419. The reversal of 4448391 is 1938444.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4448391 - 2³ = 4448383 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4448321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741396 + ... + 741401.

It is an arithmetic number, because the mean of its divisors is an integer number (1482798).

Almost surely, 2^4448391 is an apocalyptic number.

4448391 is a deficient number, since it is larger than the sum of its proper divisors (1482801).

4448391 is a wasteful number, since it uses less digits than its factorization.

4448391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482800.

The product of its digits is 13824, while the sum is 33.

The square root of 4448391 is about 2109.1209069183. The cubic root of 4448391 is about 164.4627891061.

The spelling of 4448391 in words is "four million, four hundred forty-eight thousand, three hundred ninety-one".